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I would like to know the best way to precisely position circles (Screw holes for my design) based on their central points.

What I would like to do is define a number of screw holes that all need to be cut out of a solid to the same depth with exact measurements to various edges.

The size of the screw holes may change, so I would like to work with the centre position of the holes (circles) not the edges.

As far as I can tell the constraint tool only works with measurements from the edge of the circle not the centre. Is there some way to precisely constrain circles based on their centre?

One solution I though might work (but I haven't tried yet) would be to mark the centres with points which could be precisely constrained and then create circles (Screw holes) concentrically constrained with these points.

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